Re: [patch] futex-2.5.42-A2

From: Rusty Russell (
Date: Fri Oct 18 2002 - 03:39:34 EST

In message <Pine.LNX.4.44.0210161015260.4683-100000@localhost.localdomain> you
> On Wed, 16 Oct 2002, Rusty Russell wrote:
> > If you do this, *please* add:
> > /* Above check not sufficient if align of int < size. Break link. */
> But in any case, this should not matter these days, all we need is a
> guarantee that the word is accessed atomically by the kernel when it reads
> it, pure int alignment should be enough for that.

Yes, this is true. I used to not do get_user() on the value (the page
is pinned anyway), so it mattered.

Sorry for the confusion,

  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
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